    {{ $scr := $.Scratch }}

    {{/* Attempt to load local vendor JS, otherwise load from CDN. */}}
    {{ $js := site.Data.assets.js }}
    {{ if not ($scr.Get "use_cdn") }}
      <script src="{{ printf "/js/vendor/%s" ($scr.Get "vendor_js_filename") | relURL }}"></script>
    {{ else }}
      {{ printf "<script src=\"%s\" integrity=\"%s\" crossorigin=\"anonymous\"></script>" (printf $js.jQuery.url $js.jQuery.version) $js.jQuery.sri | safeHTML }}
      {{ printf "<script src=\"%s\" integrity=\"%s\" crossorigin=\"anonymous\"></script>" (printf $js.instantpage.url $js.instantpage.version) $js.instantpage.sri | safeHTML }}

      {{ $require_isotope := site.Params.require_isotope | default true }}
      {{ if $require_isotope }}
        {{ printf "<script src=\"%s\" integrity=\"%s\" crossorigin=\"anonymous\"></script>" (printf $js.imagesLoaded.url $js.imagesLoaded.version) $js.imagesLoaded.sri | safeHTML }}
        {{ printf "<script src=\"%s\" integrity=\"%s\" crossorigin=\"anonymous\"></script>" (printf $js.isotope.url $js.isotope.version) $js.isotope.sri | safeHTML }}
      {{ end }}

      {{/* Workaround `.HasShortcode "gallery"` detection issue on `home/` WidgetPage v1 */}}
      {{ if ($scr.Get "HasNestedGalleryShortcode") | or site.Params.require_fancybox }}
        {{ printf "<script src=\"%s\" integrity=\"%s\" crossorigin=\"anonymous\"></script>" (printf $js.fancybox.url $js.fancybox.version) $js.fancybox.sri | safeHTML }}
      {{ end }}

      {{ if or .Params.diagram site.Params.diagram }}
        {{ printf "<script src=\"%s\" integrity=\"%s\" crossorigin=\"anonymous\" title=\"mermaid\"></script>" (printf $js.mermaid.url $js.mermaid.version) $js.mermaid.sri | safeHTML }}
      {{ end }}

      {{ if $.Scratch.Get "highlight_enabled" }}
        {{ $v := $js.highlight.version }}
        {{ printf "<script src=\"%s\" integrity=\"%s\" crossorigin=\"anonymous\"></script>" (printf $js.highlight.url $v) $js.highlight.sri | safeHTML }}
        {{ $v := $js.highlight_lang.version }}
        {{ range site.Params.highlight_languages }}
        {{ printf "<script src=\"%s\" crossorigin=\"anonymous\"></script>" (printf $js.highlight_lang.url $v .) | safeHTML }}
        {{ end }}
      {{ end }}

    {{ end }}

    {{/* Maps JS. */}}
    {{ $map_provider := lower site.Params.map.provider }}
    {{ if eq $map_provider "google" }}
      <script async defer src="https://maps.googleapis.com/maps/api/js?key={{ site.Params.map.api_key }}"></script>
      {{ if ($scr.Get "use_cdn") }}
        {{ printf "<script src=\"%s\" integrity=\"%s\" crossorigin=\"anonymous\"></script>" (printf $js.gmaps.url $js.gmaps.version) $js.gmaps.sri | safeHTML }}
      {{ end }}
    {{ else if (in (slice "mapnik" "mapbox") $map_provider) | and ($scr.Get "use_cdn") }}
      {{ printf "<script src=\"%s\" integrity=\"%s\" crossorigin=\"anonymous\"></script>" (printf $js.leaflet.url $js.leaflet.version) $js.leaflet.sri | safeHTML }}
    {{ end }}

    {{/* Load hash anchors for documentation pages. */}}
    {{ if in (slice "book" "docs") .Type }}
    {{ printf "<script src=\"%s\" integrity=\"%s\" crossorigin=\"anonymous\"></script>" (printf $js.anchor.url $js.anchor.version) $js.anchor.sri | safeHTML }}
    <script>
      anchors.add();
    </script>
    {{ end }}

    {{ $algoliaConfig := dict }}
    {{ $search_provider := lower site.Params.search.provider }}
    {{ if eq $search_provider "wowchemy" }}
      {{/* Wowchemy built-in search result template (Fuse). */}}
      <script id="search-hit-fuse-template" type="text/x-template">
        <div class="search-hit" id="summary-{{"{{key}}"}}">
          <div class="search-hit-content">
            <div class="search-hit-name">
              {{ printf "<a href=\"%s\">%s</a>" "{{relpermalink}}" "{{title}}" | safeHTML }}
              <div class="article-metadata search-hit-type">{{"{{type}}"}}</div>
              <p class="search-hit-description">{{"{{snippet}}"}}</p>
            </div>
          </div>
        </div>
      </script>
      {{ if ($scr.Get "use_cdn") }}
        {{ printf "<script src=\"%s\" integrity=\"%s\" crossorigin=\"anonymous\"></script>" (printf $js.fuse.url $js.fuse.version) $js.fuse.sri | safeHTML }}
        {{ printf "<script src=\"%s\" integrity=\"%s\" crossorigin=\"anonymous\"></script>" (printf $js.mark.url $js.mark.version) $js.mark.sri | safeHTML }}
      {{ end }}
    {{ else if eq $search_provider "algolia" }}
      {{/* Algolia search result template. */}}
      <script id="search-hit-algolia-template" type="text/html">
        <div class="search-hit">
          <div class="search-hit-content">
            <div class="search-hit-name">
              {{ printf "<a href=\"%s\">{{{_highlightResult.title.value}}}</a>" "{{relpermalink}}" | safeHTML }}
            </div>
            <div class="article-metadata search-hit-type">{{"{{type}}"}}</div>
            <p class="search-hit-description">{{ safeHTML "{{{_highlightResult.summary.value}}}" }}</p>
          </div>
        </div>
      </script>
      {{ if ($scr.Get "use_cdn") }}
        {{ printf "<script src=\"%s\" integrity=\"%s\" crossorigin=\"anonymous\"></script>" (printf $js.instantsearch.url $js.instantsearch.version) $js.instantsearch.sri | safeHTML }}
      {{ end }}
      {{ $algoliaConfig = dict "appId" (site.Params.search.algolia.app_id | default "") "apiKey" (site.Params.search.algolia.api_key | default "") "indexName" (site.Params.search.algolia.index_name | default "") "poweredBy" (site.Params.search.algolia.show_logo | default false) }}
    {{ end }}

    {{/* Charts */}}
    {{ if .HasShortcode "chart" }}
      {{ printf "<script src=\"%s\" integrity=\"%s\" crossorigin=\"anonymous\"></script>" (printf $js.plotly.url $js.plotly.version) $js.plotly.sri | safeHTML }}
    {{ end }}

    {{/* Disqus Comment Count JS. */}}
    {{/* Note: count can appear both in listing previews and on the content page itself. */}}
    {{ $comments_provider := trim (site.Params.comments.provider | lower) " " }}
    {{ if eq $comments_provider "disqus" | and (site.Params.comments.disqus.show_count | default true) }}
      <script id="dsq-count-scr" src="https://{{site.Params.comments.disqus.shortname}}.disqus.com/count.js" async></script>
    {{end}}

    {{/* Rename as GitHub Pages doesn't automatically publish folders with underscores. */}}
    {{ $js_bootstrap := slice (resources.Get "js/_vendor/bootstrap.bundle.min.js") | resources.Concat "js/bootstrap.bundle.min.js" }}
    {{- if hugo.IsProduction -}}
      {{ $js_bootstrap = $js_bootstrap | fingerprint "md5" }}{{/* Note: no `minify` as using pre-minified JS. */}}
    {{- end -}}
    <script src="{{ $js_bootstrap.RelPermalink }}"></script>

    {{ $js_search_params := dict }}
    {{ if in (slice "wowchemy" "algolia") $search_provider }}
      {{/* Configure search engine. */}}
      {{ $min_length := site.Params.search.wowchemy.min_length | default 1 }}
      {{ $threshold := site.Params.search.wowchemy.threshold | default 0.3 }}
      {{ $search_config := dict "indexURI" ("/index.json" | relLangURL) "threshold" $threshold "minLength" $min_length }}
      {{ $search_i18n := dict "placeholder" (i18n "search_placeholder") "results" (i18n "search_results") "no_results" (i18n "search_no_results") }}
      {{ $content_types := dict "post" (i18n "posts") "project" (i18n "projects") "publication" (i18n "publications") "event" (i18n "talks") "slides" (i18n "slides") "authors" (i18n "authors") }}
      {{ $js_search_params = dict "search_config" $search_config "algoliaConfig" $algoliaConfig "i18n" $search_i18n "content_type" $content_types }}
    {{ end }}

    {{ $js_license := printf "/*! Wowchemy v%s | https://wowchemy.com/ */\n" site.Data.wowchemy.version }}
    {{ $js_license := $js_license | printf "%s/*! Copyright 2016-present George Cushen (https://georgecushen.com/) */\n" }}
    {{ $js_license := $js_license | printf "%s/*! License: https://github.com/wowchemy/wowchemy-hugo-modules/blob/main/LICENSE.md */\n" }}
    {{ $js_bundle_head := $js_license | resources.FromString "js/bundle-head.js" }}
    {{ $js_params := dict "hugoEnvironment" hugo.Environment "codeHighlighting" ($scr.Get "highlight_enabled" | default false) "searchEnabled" (in (slice "wowchemy" "algolia") $search_provider) }}
    {{ $js_academic := resources.Get "js/wowchemy.js" | js.Build (dict "targetPath" (printf "%s/js/wow-core.js" .Lang ) "params" $js_params) }}
    {{ $js_bundle := slice $js_academic }}
    {{ if eq $search_provider "wowchemy" }}
      {{ $js_academic_search := resources.Get "js/wowchemy-search.js" | js.Build (dict "targetPath" (printf "%s/js/wow-search-built.js" .Lang) "params" $js_search_params) }}
      {{ $js_bundle = $js_bundle | append $js_academic_search }}
    {{ else if eq $search_provider "algolia" }}
      {{ $js_algolia_search := resources.Get "js/algolia-search.js" | js.Build (dict "targetPath" (printf "%s/js/algolia-search-built.js" .Lang) "params" $js_search_params) }}
      {{ $js_bundle = $js_bundle | append $js_algolia_search }}
    {{ end }}
    {{ range site.Params.plugins_js }}
      {{ $js_bundle = $js_bundle | append (resources.Get (printf "js/%s.js" .)) }}
    {{ end }}
    {{ $js_bundle = $js_bundle | resources.Concat (printf "%s/js/wowchemy-bundle.js" .Lang) }}
    {{- if hugo.IsProduction -}}
      {{- $js_bundle = $js_bundle | js.Build (dict "format" "iife") | minify -}}
    {{- else -}}
      {{- $js_bundle = $js_bundle | js.Build (dict "format" "iife" "sourceMap" "inline") -}}
    {{- end -}}
    {{ $js_bundle = slice $js_bundle_head $js_bundle | resources.Concat (printf "%s/js/wowchemy.min.js" .Lang) }}
    {{- if hugo.IsProduction -}}
      {{ $js_bundle = $js_bundle | fingerprint "md5" }}
    {{- end -}}
    <script src="{{ $js_bundle.RelPermalink }}"></script>

    {{ partial "custom_js" . }}
